First, it has to be done online; there's no paper version. That's OK, but only if you do online stuff right. Second, there's no way to save your work; you type in a huge amount of information, lose your browser session and have to start over. Third, all the data has to be formatted to an absurd degree. Cents have to be in a separate field from dollars, entered as a two-digit amount. Years have to be two-two-four digits. Fourth, you have to enter a separate line item for every purchase. If you want to add a number of purchases all at one time, too bad; you have to do that one by one.

Oh, and they don't take Visa, of all things. Say what you want about whether this kind of tax should or should not exist. But speaking as an engineer, if you're going to do something, it should be done well.